37550373
Pregunta 1
Pregunta
Air flow in a microbiology laboratory should be:
Respuesta
-
from lower to higher risk areas
-
minimized as much as possible
-
optimized to prevent the settling of dangerous aerosols
-
well-filtered by recirculating it through numerous filters before recycling
Pregunta 2
Pregunta
Procedures such as grinding, mincing, vortexing, and preparing smears:
Respuesta
-
are hazardous and should be performed while wearing gloves and gown protection.
-
create aerosol droplets and should be performed only in an approved biosafety cabinet.
-
should be avoided with specimens known to contain infectious agents
-
produce a spill hazard and should be performed over an absorptive mat.
Pregunta 3
Pregunta
Class I biological safety cabinets:
Respuesta
-
sterilize the air as it passes over the material in the cabinet
-
protect the environment from contamination by biological agents by filtering the air as it is exhausted from the cabinet.
-
are completely enclosed and have gloves that enable the worker to manipulate the material in the cabinet.
-
are often called laminar flow hoods.
Pregunta 4
Pregunta
Optimal protection of specimen, personnel, and environment is accomplished with which class of biological safety cabinet?
Respuesta
-
Class I
-
Class II
-
Class III
-
Class IV
Pregunta 5
Pregunta
The method of choice for sterilizing items such as antibiotic solutions, chemicals, radioisotopes, and vaccines that are heat-sensitive is:
Respuesta
-
dry, low temperature heat.
-
moist, low temperature heat.
-
filtration
-
chemical
Pregunta 6
Pregunta
To be sterilized in an autoclave, infectious medical waste should be:
Respuesta
-
packed tightly to avoid dangerous pressure pockets.
-
processed for 15 to 20 minutes at 121 C and 30 pounds per square inch (psi) pressure.
-
processed for 30 to 60 minutes at 132C and 15 psi pressure
-
processed for at least 1 hour at 121 C and 15 psi pressure.
Pregunta 7
Pregunta
The autoclave sterilizes material by:
Respuesta
-
applying dry heat at high temperatures and pressure.
-
infusing gaseous chemicals that kill organisms.
-
applying moist heat at high temperatures and increased pressure.
-
cleaving protein bonds found in most biological agent cell walls.
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.